TYNDALL AIR FORCE BASE, Fla. -- Maj. David Jane, a Canadian exchange officer, is the chief of contingency training in Air Force Civil Engineer Center's Readiness Directorate here. Since 1981, the U.S. Air Force and Canadian forces have conducted mutually beneficial exchanges of officers between the two services in order to build cooperation and maintain capabilities in preparation for possible joint operations. (U.S. Air Force photo/Eddie Green)